Introduce Paint.hasGlyph performance tests.

/*

 * Copyright (C) 2016 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package android.graphics.perftests;

import android.graphics.Paint;

import android.perftests.utils.BenchmarkState;

import android.perftests.utils.PerfStatusReporter;

import android.perftests.utils.StubActivity;

import android.support.test.filters.LargeTest;

import android.support.test.rule.ActivityTestRule;

import java.util.Arrays;

import java.util.Collection;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.runners.Parameterized.Parameters;

import org.junit.runners.Parameterized;

@LargeTest

@RunWith(Parameterized.class)

public class PaintHasGlyphPerfTest {

    @Parameters(name = "{0}")

    public static Collection glyphStrings() {

        return Arrays.asList(new Object[][] {

            { "Latin", "A" },

            { "Ligature", "fi" },

            { "SurrogatePair", "\uD83D\uDE00" },  // U+1F600

            { "Flags", "\uD83C\uDDFA\uD83C\uDDF8" },  // US

            { "Ideograph_VariationSelector", "\u3402\uDB40\uDD00" },  // U+3402 U+E0100

            { "Emoji_VariationSelector", "\u00A9\uFE0F" },

            { "EmojiSequence",

              // U+1F468 U+200D U+2764 U+FE0F U+200D U+1F48B U+200D U+1F468

              "\uD83D\uDC68\u200D\u2764\uFE0F\u200D\uD83D\uDC8B\u200D\uD83D\uDC68" },

        });

    }

    private final String mQuery;

    public PaintHasGlyphPerfTest(String metricKey, String query) {

        mQuery = query;

    }

    @Rule

    public ActivityTestRule<StubActivity> mActivityRule = new ActivityTestRule(StubActivity.class);

    @Rule

    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

    @Test

    public void testHasGlyph() {

        Paint paint = new Paint();

        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();

        while (state.keepRunning()) {

            paint.hasGlyph(mQuery);

        }

    }

}